After moving a Lubuntu virtual machine from VirtualBox to VMware Workstation and installing VMware Tools, I needed to clean out an old installation of Open-VM-Tools (OVT) and VirtualBox Guest Additions. Here are the steps I followed:

List installed dkms packages:

dkms status

Remove open-vm-tools and vboxguest that were listed by the previous command (note that you’ll need to provide the corresponding version numbers):